Device measures happiness at work

Electronics giant Hitachi designed a device to measure whether people are happy in their workplace.

The device looks similar to a company ID badge and is embedded with an acceleration sensor.

The wearable card detects the vitality of the person's movements during walking, standing up, and speaking among other actions.

Hitachi engineers say there's a certain co-relation between people's physical movements and their sense of happiness.

They say if people in the same office wear the device, the data can be collectively analyzed to measure workplace happiness on a scale of zero to 100.